test: skip unstable UT

[poolifier.git] / tests / utils.test.js

diff --git a/tests/utils.test.js b/tests/utils.test.js
index 6518ca924f188fc69d7de8d58adc9219c2ce311e..0f72aa429fc5caae1494231f2bafaf7a3676b51b 100644 (file)
--- a/tests/utils.test.js
+++ b/tests/utils.test.js
@@ -1,11 +1,20 @@
+const { randomInt } = require('crypto')
 const { expect } = require('expect')
+const {
+  CircularArray,
+  DEFAULT_CIRCULAR_ARRAY_SIZE
+} = require('../lib/circular-array')
 const {
   availableParallelism,
+  average,
+  exponentialDelay,
   isAsyncFunction,
   isKillBehavior,
   isPlainObject,
   median,
   round,
+  secureRandom,
+  sleep,
   updateMeasurementStatistics
 } = require('../lib/utils')
 const { KillBehaviors } = require('../lib/worker/worker-options')
@@ -13,6 +22,36 @@ const { KillBehaviors } = require('../lib/worker/worker-options')
 describe('Utils test suite', () => {
   it('Verify availableParallelism() behavior', () => {
     expect(typeof availableParallelism() === 'number').toBe(true)
+    expect(availableParallelism()).toBeGreaterThan(0)
+    expect(Number.isSafeInteger(availableParallelism())).toBe(true)
+  })
+
+  it.skip('Verify sleep() behavior', async () => {
+    const start = performance.now()
+    await sleep(1000)
+    const elapsed = performance.now() - start
+    expect(elapsed).toBeGreaterThanOrEqual(1000)
+  })
+
+  it('Verify exponentialDelay() behavior', () => {
+    expect(typeof exponentialDelay(randomInt(1000)) === 'number').toBe(true)
+    expect(exponentialDelay(randomInt(1000))).toBeGreaterThanOrEqual(
+      Number.MIN_VALUE
+    )
+    expect(exponentialDelay(randomInt(1000))).toBeLessThanOrEqual(
+      Number.MAX_VALUE
+    )
+  })
+
+  it('Verify average() computation', () => {
+    expect(average([])).toBe(0)
+    expect(average([0.08])).toBe(0.08)
+    expect(average([0.25, 4.75, 3.05, 6.04, 1.01, 2.02, 5.03])).toBe(
+      3.1642857142857146
+    )
+    expect(average([0.25, 4.75, 3.05, 6.04, 1.01, 2.02])).toBe(
+      2.8533333333333335
+    )
   })
 
   it('Verify median() computation', () => {
@@ -128,40 +167,61 @@ describe('Utils test suite', () => {
   })
 
   it('Verify updateMeasurementStatistics() behavior', () => {
-    const measurementStatistics = {}
+    const measurementStatistics = {
+      history: new CircularArray()
+    }
     updateMeasurementStatistics(
       measurementStatistics,
       { aggregate: true, average: false, median: false },
-      0.01,
-      1
+      0.01
     )
-    expect(measurementStatistics).toEqual({
+    expect(measurementStatistics).toStrictEqual({
       aggregate: 0.01,
       maximum: 0.01,
-      minimum: 0.01
+      minimum: 0.01,
+      history: new CircularArray()
     })
     updateMeasurementStatistics(
       measurementStatistics,
       { aggregate: true, average: false, median: false },
-      0.02,
-      2
+      0.02
     )
-    expect(measurementStatistics).toEqual({
+    expect(measurementStatistics).toStrictEqual({
       aggregate: 0.03,
       maximum: 0.02,
-      minimum: 0.01
+      minimum: 0.01,
+      history: new CircularArray()
     })
     updateMeasurementStatistics(
       measurementStatistics,
       { aggregate: true, average: true, median: false },
-      0.001,
-      3
+      0.001
     )
-    expect(measurementStatistics).toEqual({
+    expect(measurementStatistics).toStrictEqual({
       aggregate: 0.031,
       maximum: 0.02,
       minimum: 0.001,
-      average: 0.010333333333333333
+      average: 0.001,
+      history: new CircularArray(DEFAULT_CIRCULAR_ARRAY_SIZE, 0.001)
+    })
+    updateMeasurementStatistics(
+      measurementStatistics,
+      { aggregate: true, average: true, median: false },
+      0.003
+    )
+    expect(measurementStatistics).toStrictEqual({
+      aggregate: 0.034,
+      maximum: 0.02,
+      minimum: 0.001,
+      average: 0.002,
+      history: new CircularArray(DEFAULT_CIRCULAR_ARRAY_SIZE, 0.001, 0.003)
     })
   })
+
+  it('Verify secureRandom() behavior', () => {
+    const randomNumber = secureRandom()
+    expect(typeof randomNumber === 'number').toBe(true)
+    expect(randomNumber).toBeGreaterThanOrEqual(0)
+    expect(randomNumber).toBeLessThan(1)
+  })
 })